Is it considered a normal thing for a dentist to give a 15 year old with a badly abscessed tooth two penicillin shots in her hips after completing an emergency root canal? I was not aware that dentists normally gave any other types of injections, only the ones to make your mouth numb before working on you. My daughter seemed surprised, and I have never heard of it before. The dental assistant was in the room with her at the time and my daughter says she doesn't think anything inappropriate took place. They said it was late in the evening, nearly 8PM and the local pharmacy would be closing so there was no way to get her a prescription filled for oral antibiotics before this morning. When I asked, they said they sometimes do penicillin shots after such work, especially if the patient is in pain and running a fever from the infection. They had her bend over the chair and lower her jeans and underpants, and gave one shot in each hip.